大家帮我分析下下面三个英语句子吧,谢谢了?
1.Machinetoolframesaregenerallymadeincastiron,althoughsomemaybesteelcastingormild-ste...
1. Machine tool frames are generally made in cast iron , although some may be steel casting or mild-steel fabrications。
2.To avoid massive sections in casting , carefully designed systems of ribbing are used to offer the maximum resistance to bending and torsional stresses。
3.These elements may be used separately or combined in various ways according to the applications。 展开
2.To avoid massive sections in casting , carefully designed systems of ribbing are used to offer the maximum resistance to bending and torsional stresses。
3.These elements may be used separately or combined in various ways according to the applications。 展开
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